Manufacturing artificial material from polyvinyl compounds



Patented Apr. 30, 1940 y y I NITED STATES I PATENT m:

" are?srrzcrzeraaiwzm sellschaft, Berlin-Slemensstadt, Germany, acorporation of Germany v No Drawing. Application May '13, 1937, SerialNo. 142,479. In Germany May 18, 1936 9Claiins. (o1. zoo-as) My inventionrelates to a method for manulent mixtures may be obtained. As aninstance facturing artificial material from polyvinyl chlofor saidmixtures of softening agents whose in-' ride, subsequently chlorinatedpolyvinyl chloride dividual constituents are useless or'inadequate, andmixed polymers of polyvinyl chloride. a mixture "of one part ofdicetylphthalate and .i To attain suitable mechanical properties,softhree parts of an aromatic hydrocarbon mixture 6 tening agents areadded to the known artificial may be mentioned. This mixture may be pmaterials consisting of such polymerized vinyl duced by causing benzylchloride to act on naphcompounds. Thereare, in general, two groups ofthalene by means of catalyzers or a mixture of agents which have adifferent effect on the prop--v one part of octodecylbenzoate and fourparts of in erties of the material. Agents of the first groupchlorinated diphenyl. impart to said substances mechanically useful Iclaim as my invention: p operties within a wide temp n e; but 1. Themethod or manufacturing artificial mathey also have the drawback ofunfavorably int rial from substance of the group consisting of fluencingthe electrical properties. Agents of the polyvinyl hloride, subsequentlychlorinated po1y-' second group impart good electrical properties tovinyl hloride, and polyvinyl chloride mixed poly- 15 the material, butthe mechanical properties are mers, by adding s ftening means,characterized. rendered favorable only within a very small temby mloying as softening means organic plasp r ure e- T the fir r p nticizers containing at least one aromatic group, ins nce, tri yphosphate, tripheny p spha and at least one aliphatic group whose carbon:0 diethylph hal i l y p and polyglytchain contains more than 10 carbonatoms.

erinacetate and to the second group belong, for 2. A methodformanufa-cturing artificial mainstance, liquid mixtures of high-boilingaroterial from b ta f the group consisting of matic hydrocarbons orchlorinated aromatic hypolyvinyl hl rid subsequently chlorinatedpolydrocarbons. vinyl chloride, and polyvinyl chloride mixed poll!-According to the invention, the drawbacks of mcrs; by adding softeningagents t ri d 25 the known softening agents are avoided by embyemploying as softening agents esters of p y as softening a ents organiccompounds matic acids and of highly molecular aliphatic which containbesides one or more aromatic alcohols t more t a 10 carbon t roups oneor more, aliphatic cha n-S r 3. A. method for manufacturing artificialmathan 10 carbon atomsterial from substance of the group consisting of30 As an instance tetradecylbenzoate, or benzy polyvinylcmcridc,subccquent1y cmcnnatcd stearate may be mentioned. However,besides vinyl chloride, d polyvinyl chloride mixed polythese and similaresters, also other derivatives of mers, by addmg'scftenmg agents,characterized fatty acids, such as substituted fatty acid amides, byemploying a softening agents esters of for instance, d p y d y amides ofthe matic alcohols with highly molecular fatty acids 35 stearic acid,palmitic acid or oleic acid, may be t more th 0 carbon t employed.Particularly advantageous have 4 A method c manufacturing artificial five o be mix r of p ic Composed terial from substanceof the groupconsisting of according to the above-mentioned principle, with polyvinylchloride, subsequently chlorinated 1 40 sof enin agents of theabove-mentioned vinyl chloride, and polyvinyl chloride mixed poly- 4o0nd group of electrically high-graded aromatic rs, by adding softeningagents, characterized hi'drocarboll mixtures of Chlorinated hydrocarbyemploying as softening agents esters of are bons. With such mixtures itis possible to attain matic alcohols t highjy mclecumr cleic acids thefollowing particularly favorable effect. .Cerit more th n 10 carbonatoms I tain softening agents composed a or in to the r 5. A' method formanufacturing artificial maabov pr n p can no longer be olv in pterialfrom substance of the group consisting of p cia a u s y the p ly l ridpolyvinyl chloride, subsequently chlorinated olyits mixed polym if the hin of the aliphatic vinyl chloride, and polyvinyl chloride mixedpolyconstituents is too long. These agents are, theremers, by addingsoftening agents, characterized fore, in themselves useless. If,however. such by employing as softening agents aromatically 50 n are rht together with aromatic hysubstitutedamidesof fattyacids withmore'than drocarbon mixtures, which in themselves arealso 10 carbonatoms.

' notunrestrictedly useful on account of the limi- 6. A method formanufacturing artificial matation of the elasticity to a very smallrange of terial from substance of the group consisting of totemperature, electrically and elasticallyexcelpolyvinyl chloride,subsequently chlorinated poly- 6B vinyl chloride, and polyvinyl chloridemixed polymers, by adding softening agents, characterized by employingas softening agents aromatically substituted amides of oleic acids withmore than tains more than 10 carbon atoms, in common with highlymolecular aromatic hydrocarbons;

8. A method for manufacturing artificial materlal from substances of thegroup consisting of polyvinyl chloride, subseouently chlorinatedpolyvinyl chloride, and polyvinyl chloride mixed polymers, characterizedby adding organic-plasticizers containing at least one aromatic group,and at least one aliphatic group whose carbon chain contains more than10 carbon atoms, incommon with chlorinated aromatic hydrocarbons.

9. An artificial material comprising substance selected from the groupconsisting of polyvinyl chloride, subsequently chlorinated polyvinylchloride, and polyvinyl chloride-mixed polymers, in combination with anorganic plasticizer containing at leastone aromatic group, and at leastone aliphatic groupwhose carbon chain contains more than 10 carbonatoms.

HANS MULLER.

